$ /nix/store/9ypz3flqsrl5xl495mm8h645gadjsxi1-coreutils-9.11/bin/timeout --kill-after=15s 7200s /nix/store/23zk8sgzamrbmj1fday15szf7f2279s8-nix-2.34.7/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link --print-out-paths git+https://github.com/alphal00p/gammaloop?ref=advanced_sampling&rev=8dba637622428e08313fa1a7a02f78bbde9aae48&shallow=1#packages.x86_64-linux.gammaloopApiPackageArtifacts --print-build-logs error (ignored): SQLite database '/var/cache/nix-ci-worker/eval-cache-v6/ee9da1714b2185ce440741f0069b97356b80eb87939934b3fb316916caf81f96.sqlite' is busy  Downloading cached source from https://cache.nix-ci.com Downloaded cached source (199.4 MiB) in 9.4s Progress: 1 of 1 downloaded from cache  Downloading cached gammaloop-crate-gammaloop-api-dependency-deps from https://cache.nix-ci.com Downloaded cached gammaloop-crate-gammaloop-api-dependency-deps (428.5 MiB) in 38.5s Progress: 0 of 2 built, 1 of 3 downloaded from cache Downloading cached gammaloop-crate-gammaloop-api-build from https://cache.nix-ci.com Downloaded cached gammaloop-crate-gammaloop-api-build (64.7 MiB) in 3.1s Progress: 0 of 2 built, 2 of 3 downloaded from cache Downloading cached gammaloop-api-package-artifacts from https://cache.nix-ci.com Downloaded cached gammaloop-api-package-artifacts (2 GiB) in 18.0s error: unable to download 'https://cache.nix-ci.com/nar/0aqmnhj28f57as7gacsqrl97h4yzlavn8vcz0hh1y3sm5zhb4lbh.nar.xz': HTTP error 200 (curl error: Stream error in the HTTP/2 framing layer) Progress: 0 of 2 built, 2 of 3 downloaded from cache (1 failed) error: path '/nix/store/hncbm4g9s2b6jkgafkwr49q7ab5hq2d0-gammaloop-api-package-artifacts' is required, but there is no substituter that can build it Progress: 0 of 1 built (1 failed), 2 of 3 downloaded from cache (1 failed) error: some substitutes for the outputs of derivation '/nix/store/53gscrzzpqvh0z931hl0y5pk5596zzr9-gammaloop-api-package-artifacts.drv' failed (usually happens due to networking issues); try '--fallback' to build derivation from source error: Cannot build '/nix/store/s1czhjrmsr9q9rd2s60llbr7gzp1ymhn-nix-ci-artifact-barrier-gammaloop-api-package-artifacts.drv'. Reason: 1 dependency failed. Output paths: /nix/store/1bqcp3xlxxbh0ddf7nlhch60s5dzsnlq-nix-ci-artifact-barrier-gammaloop-api-package-artifacts Build failed due to failed dependency Build failed.